The arbitrary binary is a common trope in science-fiction. Two peoples have hated one another for so long that they have forgotten what caused their discord in the first place. All that remains are arbitrary distinctions, usually directly inverse of one another. In the infamous Star Trek episode &ldquo;Let this be Your Last Battlefield&rdquo; the divide was between two races of humanoid aliens, one white on the right side and black on the left, the other black on the right side and white on the ...